Certified IP Telephony Specialist v2.4 Q&A : 2 Parts, 78 Questions(in pdf format) + 100 Questions (in Interactive Testing Engine) Last updated on: 07/05/2017
Disclaimer: These study guides and/or any material produced by this company is not sponsored by, endorsed by or affiliated with Microsoft, Cisco, Oracle, Novell or Prosoft. All trademarks are trademarks of their respective owners.